Mark-10 Force/Torque Indicator Model 3i

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Additional Options

The 3i digital force / torque indicator is designed to work with a wide range of Mark-10 remote force and torque sensors. With exclusive Plug & TestTM technology, all calibration and configuration data is saved within the sensor’s smart connector, not the indicator, allowing for true interchangeability. In addition, all sensors are fully compatible with other Mark-10 indicators.

Data Sheet
User’s Guide
5i / 3i Comparison Chart

The 3i shares its menu structure and most specifications with Series 3 digital force gauges. The sampling rate is 2,000 Hz, producing accurate results under a wide range of test conditions. A backlit graphic LCD displays large characters, and a menu is available to access the gauges’ features and configurable parameters. The display also features an analog load bar for graphical representation of applied load, as well as set point indicators for pass-fail testing. USB output is provided for data collection purposes.

The 3i includes MESURTM Lite data acquisition software, for tabulation of continuous or individual data points. One-click export to Excel allows for further data manipulation.

Mark-10 Force/Torque Indicator Model 3i Features:

  • Interchangeable force and torque sensors through Plug & TestTM technology (sensors are sold separately)
  • High-speed 2,000 Hz sampling rate
  • USB data output of continuous or individual data points
  • Ultra-compact size
  • Large backlit graphic display
  • Programmable set points with pass/fail indicators
  • Live load bar graph with set point markers
  • Peak readings and set points always displayed
  • Configurable audio alarms and key tones
  • Programmable auto-shutoff
  • Configurable audio alarms and key tones
  • Battery or AC operation
  • MESURTM Lite data collection software included
  • CE mark

Ordering Infromation

Model Description
M3I Force/torque indicator, 110V
M3IE Force/torque indicator, 220V Europe
M3IU Force/torque indicator, 220V UK
M3IA Force/torque indicator, 220V Australia


Mark-10 Force/Torque Indicator Model 3i

Weight 1 lbs
Dimensions 3.9 × 2.53 × 1.5 in

±0.2% of full scale + sensor

Sampling rate

2,000 Hz


AC or rechargeable battery. Multi-step low battery indicator is displayed, gauge shuts off automatically when power is too low.

Battery Life

Backlight on: up to 7 hours of continuous use Backlight off: up to 24 hours of continuous use

Safe overload

150% of full scale (display shows “OVER” at 110% and above)


Weight: 0.7 lb (0.3 kg)

Included items

Carrying case, universal voltage AC adapter, battery, quick-start guide, USB cable, resource CD (USB driver, MESUR Lite software, MESUR gauge DEMO software, and user's guide), and certificate of conformance.


3 years (see individual statement for further details)

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